Over the following .................. ......................, expenditure on landline phone services gradually dropped below $600,
five years
The line graph ................. the average cost that American customers spent on mobile and landline phone services annually over a 10-year period.
illustrates / describes / analyses / shows
What trend is this?
decrease
What trend is this?
fluctuate
Also, both of services met at the same record ......... ...................
in 2006
Meanwhile, spending on residential phone services experienced a steep fall in 2007 and went on to................ ....................... for the rest of the period.
steadily decrease / falling dramatically
whereas expenditure on cell phone services rose to just over ...........................
$500
while the amount of annual expenditure on the residential phone services was around .............
$700
....... ...................... cell phones overtook landline phones, and the services became equal in popularity with customers' annual expenditure of about $550.
In 2006
What kind of diagram is this?
process
Overall, spending on residential phone services .............. ...................,
dramatically declined / sharply dropped down
What kind of chart / diagram is this?
table
What kind of chart is this?
pie chart
Then, cell phone expenses rose to approximately $750 .............. ...............,
in 2010
In 2001, spending on mobile phone services began by merely .........................,
$200
What trend is this?
remain stable / unchanged